There are two different types of eyeglass lens designs:
Single vision, an all-purpose lens designed to correct distance vision, and
Multifocal, designed to correct both distance vision and near vision (the upper portion is focused for distance vision, while the bottom portion is used for up close activities such as reading).
Bifocals have a correction for reading on the bottom half of the lens and another for seeing at a distance on the top. Some specialized lenses may also have segments at the top for those who need to look upward at objects that are in the intermediate or near range (double-D bifocals).
Trifocals are lenses with three different lens corrections — distance vision, intermediate vision, and near vision — in one set of eyeglasses.
Progressive lenses function generally the same way as bifocals or trifocals; however, they have a smooth transition between distance and near focal areas instead visible dividing lines. While the invisible transition of progressive lenses may be more aesthetically pleasing, the focal areas are relatively small because more lens space is used for the transitional areas. Progressive lenses cause more distortion than other types of lenses, making them more difficult to wear for approximately 10 percent of the population.
If you don’t need correction for seeing at a distance, you can get reading glasses (also called readers) over the counter at drugstores, bookstores and many other retail shops to correct presbyopia. You can also get a prescription for reading glasses from your eye care provider.
No exercise or medication can reverse presbyopia. Delaying the use of reading glasses is of no benefit. You will probably need to change your eyeglass prescription from time to time between the ages of 40 and 60 because your eye’s natural lens will continue to lose flexibility and, therefore, focusing ability.
Plastic is the most common place materials used in eyeweardue to its flexibility, weight, and strength (safer due to less likelihood of shattering), and ability to block inherent UV light.
Polycarbonate Lenses is specific to eye wearers who play sports or are involved in activities that can result in eye injuries. These lenses are highly impact and scratch resistant.
Trivex is a newer composite that meets the same safety standard as polycarbonate, but provides less distortion.
High Index is for those that require high visual correction. High Index are thin, light and remove the “coke bottle” appearance that come with thick-lensed glasses.
Anti-reflective coatings help to diminish reflections off the surface of your glasses, thereby allowing others to make eye contact with you more effectively and improving your appearance. We provide all types of coatings that best suits your needs and lifestyle.